Improvement in drchpping-device tor seeding-machines



DANInnnnesnnRnY, or DAYTON, onto.

Letters Patent No. 97,425, dated November 3Q, 1869.

MPROIEMENT IN I )ROIPPING--DEVICE FORSEEDING-MACHINES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom itfmay concern: I 'Be it known that I, DANIEL E. MCSHERRY, of Dayton, in the county of Montgomery, and State of Ollio, s have invented a new and improved Dropping-Device for Seeding-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the' accompanying drawings, making part of this specification, in which-v Figure l is a section taken longitudinally and vertically through the centre of my improved seed-drop ping device.

lligure 2 isa top view of the seed-cup and distribnting-wheel'with one-haltet' the cup, which is above the distributing-wheel, broken away.

Figure 3 is a section taken in a vertical plane transversel y through the centre of the seed-cup and the distributing-wheel.

Figure 4 are side views of the distributing-wheel and its washer. Figure 5 is a perspective view of the cap and its curtain removed from the'seed-cup.

- Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improvement on the seed-distributing device which was secured lo me by Letters Patent of the United States, numbered, respectively, 45,443 and 816,026, and dated onthe 13th day of December, A. D. 1864, andbdated on the 19th day of' January, 1869.

The distributers described in said Letters Patent,

consist of spirally glooved distributing wheels, arranged in oblong cups, so as to discharge seeds through openings made through the back walls of these cups.' In the Letters Patentnumbered86,026, a cap was shown applied over the spirally-grooved distributingwheel, for the purpose of causing the seeds, descending from the hopper into the seedcup, to take a course through this cup and out of it, in the direction of rotation of said wheel, that is to say, to cause the seeds to pass beneath the wheel on their way to the`discharge-opening through the cup.

In practice, I found that the opening for allowing the seeds to enter the seed-cup was so very small, that oats and other seeds would rind lodgement at and bridge over this opening. This was caused by having the front edge of the cup over the distributing-wheel carried too far forward, so that there was not space enough between the cup and front end of the cap.

{[he'natnre of my invention and improvement consists in cutting away the front portion of the cap to thedistributing-wheel, so that the front edge of this cap is in line with, or in-rear otlv a'rertical plane intersecting the axis of .said wheel, and in extending the curtain of the cup far enough downward to prevent seed from escaping over the wheel, as will'be hereinafter explained.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawingsi A represents the bottom of a seed-hopper, through the throat a of which theseeds fall into an oblong concavo-convex seed-cup, B, having sides which are perpendicular, or nearlyA so, to said seed-bottom.

- Within this cup B, a spirally-grooved dstributing- I wheel, D, is arranged upon a shaft, 0,-' so as to turn with this shaft -in the direction indicated by 'the arrow in fig. l; and at one or both ends of the wheel D, a washer, J, is applied to it, so as to turn'. with it, and

prevent'the seeds from being crushed between theY end orv ends of said wheel and the side or sides of Jche seed-cup B. j

Where spiral grooves are made into the perimeter of a wheel, as indicated in fig. 2, only a single washer will be required, as the action of this wheel is to move the seeds laterally in one direction.

lhe lugs j j, on one end of wheel D, enter recesses in the Washer J, and thus cause the latter to turn vwith its shaft O.

4The parts above described, are constructed so as to operate ,substantially as described in my Letters Patent above referred to.

' Vertical slotsg g are made into the sides of the seed-cup B, for allowing the shaft C, with its wheel and washer, to be introduced into their places, or be .readily removed therefrom.

cover the rear portion of Wheel D suiciently to pre vent seeds from escaping backward over this wheel.

Hitherto the seeds were prevented, in a degree, from escaping over the wheel D hy extending the froutedge of the cup to such wheel, to or forward of a vertical plane intersecting the axis of said wheel, the objection to which was, that there was not space enough left between the cap and the front part ofthe seed-cup to allow a free iiow of seed into this cup from the hopper. Having c ut away the iront-'portion oi' the cap E, as shown in ijgs. I, 2, and 5, it is necessary to lengthen .the curtain c, and to have it lie closely to the wheel D.

By thus constructing the cap E, and fitting it to the wheel D, I am enabled to afford, with a cup, B, of a given length, a much larger `throat-opening, a, than has hitherto' been attained. By this means I preven seeds from` cloggng'n or bridging over the passage lending from the hopper into the seed-cup.

I do not claim, broadly, under this petition, a cap cnt-o applied to a distributing-Wheel but What I doclaim, and desire t0 secure by Letters Patent, is

1. The cap E, constructed with a. eoncavo-convex curtain, e, and with its upper anterior edge z in, or in rear of' a. vertical plane intersecting the axis of shaft O, substantially ns and for the purposes described.

2. While not claiming broadly ajcap to a rot-ary seed-dropping wheel, I do claim so constructing the curtain e, of such a. cap, that it will lie closely to the back of :n spirally-grooved wheel, D, and prevent the escape of seeds over such wheel through its spiral grooves, substantially as and for the purposes described.

DANIEL E. MCSHERRY.

Witnesses:

R. T. CAMPBELL, J. N. CAMPBELL. 

